Unity（三十五）：Tile Palette添加绘制画笔

效果

创建、选择画笔

脚本

• Editor

  using UnityEditor;
  using UnityEditor.Tilemaps;
  using UnityEngine;
  
  // [CustomEditor(typeof(GridBrush))] // 在默认画笔上添加脚本
  [CustomEditor(typeof(CustomBrush))] // 在新创建的画笔上添加脚本
  public class CreateCustomBrushEditor : GridBrushEditor
  {
        
        
  	private string _brushName;
  
  	protected override void OnEnable()
  	{
        
        
  		base.OnEnable();
  		_brushName = (target as CustomBrush)?.name;
  	}
  
  	// 重绘Scene视图
  	public override void OnPaintSceneGUI(GridLayout gridLayout, GameObject brushTarget, BoundsInt position, GridBrushBase.Tool tool, bool executing)
  	{
        
        
  		base.OnPaintSceneGUI(gridLayout, brushTarget, position, tool, executing);
  		string msg = $"{
          
          _brushName}\n{
          
          gridLayout.name}-{
          
          brushTarget.name}\n{
          
          position}";
  		GUIStyle style = new GUIStyle();
  		style.normal.textColor = Color.red;
  		style.fontSize = 20;
  		// Handles 场景视图中的自定义 3D GUI 控件和绘制操作
  		Handles.Label(position.position, msg, style);
  	}
  
  	[MenuItem("Assets/Create/创建自定义画笔", false, 0)]
  	public static void CreateCustomBrushFile()
  	{
        
        
  		// public static string SaveFilePanelInProject (string 保存框标题, string 文件名, string 后缀名, string 保存提示);
  		string path = EditorUtility.SaveFilePanelInProject("保存自定义画笔", "New Brush", "asset", "请选择保存画笔的路径！");
  		if (path != "") AssetDatabase.CreateAsset(ScriptableObject.CreateInstance<CustomBrush>(), path);
  	}
  }
  

• 画笔

  using UnityEditor.Tilemaps;
  using UnityEngine;
  
  /**
   * CustomGridBrushAttribute  用于将该类定义为网格画笔，以及使其在调色板窗口中可用
   * CustomGridBrushAttribute (bool hideAssetInstances, bool hideDefaultInstance, bool defaultBrush, string defaultName)
   *		--> hideAssetInstances		在该瓦片面板窗口中隐藏该画笔的所有资源实例
   *		--> hideDefaultInstance		在该 Tile Palette 设置后，该摄像机渲染另一个通道（在不透明效果之后，但在图像效果之前）
   *		--> defaultBrush			如果设置为 true，则画笔将替换在调色板窗口中作为默认画笔的 Unity 内置画笔
   *		--> defaultName				此画笔的默认实例的名称
   */
  // 创建自定义画笔 - 拓展画笔
  [CustomGridBrushAttribute(false, true, false, "自定义画笔")]
  public class CustomBrush : GridBrush
  {
        
        
  	public string name; // 画笔名称（可以添加其他参数用于修改画笔绘制的形式）
  
  	/**
  	 * 重写画笔绘制方法
  	 * public void Paint (GridLayout gridLayout, GameObject brushTarget, Vector3Int position);
  	 *		--> gridLayout			用于布局的 Grid
  	 *		--> brushTarget			绘制操作的目标。默认为当前选择的 GameObject
  	 *		--> position			要绘制数据的单元格的坐标
  	 */
  	public override void Paint(GridLayout gridLayout, GameObject brushTarget, Vector3Int position)
  	{
        
        
  		base.Paint(gridLayout, brushTarget, position);
  		#if false
  		// 修改绘制形式
  		// position.x += 2;
  		// base.Paint(gridLayout, brushTarget, position);
  		#endif
  		// 打印绘制区域的信息
  		Debug.Log($"{
          
          gridLayout.name}-{
          
          brushTarget.name} ---> {
          
          position}");
  	}
  }